import _00SetFunction as sf

#验证性质
m,n=20,10
X=range(m)
Y=range(n)
Ix=sf.Ixfunc(X)
Iy=sf.Ixfunc(Y)
f=sf.createfunction(X,Y)
E1=sf.compositefunc(f,Ix)
E2=sf.compositefunc(Iy,f)
tv=E1==E2
print("f",f)
print(tv)